Jason Castro #15 of the Houston Astros hits against the Texas Rangers at Rangers Ballpark in Arlington on July 5, 2013 in Arlington, Texas. (Photo by Rick Yeatts/Getty Images)

Mariano Rivera #42 of the New York Yankees pitches in the ninth inning against the Baltimore Orioles at Yankee Stadium on July 6, 2013 in the Bronx borough of New York City. (Photo by Jim McIsaac/Getty Images)